Hose-coupling



(N0 Model.)

B. W. SHEPHERD.

HOSE COUPLING.

No. 544,469. Patented Aug. 13, 1895.

UNITED STATES EDWIN W. SHEPHERD,

' PATENT OFFIC on CHICAGO, ILLINOIS.

HOSE-COUPLING.

EPECIFICATIONforming part of Letters Patent No. 544,469, dated August13, 1895.

Application filed September 4, 1894. Serial No. 522,072. (No modelJ Toall whom it may concern:

Be it known that I, EDWIN W. SHEPHERD, a citizen of the United States ofAmerica, residing at Chicago, in the county' of Cook and State ofIllinois, have invented certain new useful Improvements inHose-Couplings, of which the following is a specification.

My invention relates to certain improvements in hosecouplings, thepurpose of which is to produce a coupling which can be operated quicklyand without twisting the hose and which will be water-tight and durable.

To such end my invention consists in certain features of construction,fully described in the following specification and pointed out in theappended claims.

The drawings illustrate my invention by means of seven figures, ofwhich- Figure 1 is a side elevation of a complete coupling embodyingsaid invention. Fig. 2 is an axial diametrical section. Fig. 3 is an endelevation of one member of the coupling; Fig. 4, a similar View of theother member; Fig. 5, a view showing a different position of the memberseen in Fig. 3; Fig. 6,a section in line 6 6 of Fig. 3, and Fig. 7 asection in line 7 7 in Fig. 3.

The coupling consists of the two end members A B, adapted for connectionwith the hose, as is customary. The member A is screw-threaded at a andprovided with a collar a, internally screw-threaded at one end to screwupon the member A, and provided at the other end with an undercut groovea This groove extends partially around the collar, as seenimFigs. 3 and5, upon theopposite sides, and between these portions the metal is cutaway, as seen ata a In this groove is mounted an annular plate a havingears a projecting through the cut-away portions sufficiently to begrasped by the hand. Upon the inner edge of the plate are two notches a,and corresponding notches a are cut in the collar beneath the plate toregister with the notches in the former when the plate is in theposition seen in Figs. 3 and 7.

The member B is provided at one end with oppositely arranged lugs b,fitted to the notches a a and said lugs are, inserted in these notchesin making the coupling and retained there byturning the plate into theposition seen in Fig. 5 to prevent the withdrawal or the lugs from thenotches a To insure the tightness of thejoint against leakage, a pliablerubber washer 0, having an annular portion 0 and a hollow cylindricalportion 0, is inserted, as seen in Fig. 2, in which position the memberA is screwed directly upon the annular portion of the washer, forcingsaid portion against the rigid washer D, which bears upon the member B,and the cylindrical portion 0 of the washer extends into the member Band forms a water-tight joint with the same because of the lateralpressure of the water within the coupling.

' The principal advantage of my invention is the ease with which it ismanipulated, the durability of its parts, and the absolute freedom fromleakage without necessarily requiring the parts to be clamped tightlytogether. The latter feature is due .to the extension of the pliablewasher within the member which is coupled to it, by reason of which thewater is made to tighten the joint against itself, and thus any increaseof pressure increases the force by which the joint is made.

I claim as new and desire to secure byLetters Patent- 1. The combinationin a hose or pipe coupling, of two members provided with means forengagement whereby they may be interlocked against separation, and apliable washer tightly secured in one of the members by means of anannular flange and having a tubular extension integral with said flangeand adapted to extend into and fit closely

